Private Eye seems to have got it about right. Their front page has a photo of the front phalanx of world leaders at the march in Paris with a collective speech bubble above it which says: "Je suis charlatan."
Their coverage in the magazine of the the shootings is clever, witty, to the point, but does not at any time insult the generality of muslims - the terrorists are their target. They have two spreads of cartoons, one old cartoons of theirs that cover the topic, and a spread of new ones.
Some examples:
- An Islamic leader dressed in robes confronts two terrorists and says "You're not going to like this lads.....I have decided we're going back to the old Islamic values of tolerance, art and science, leading the field in medicine and agriculture.
- a terrorist pats a little boy in the head as he hands him a grenade and says "If only I could go to paradise with you, but alas I'm needed here on earth."
- two children sitting writing in class, one with their hand up saying "Do I still have the right NOT to offend miss?"
That's the way to do it.